body {
        background-color: aqua;
}

.box5 {
        /* width: 100%;
        height: 100px; */
        /* border: 2px solid red; */
        margin: 15px auto;

}

.button {
        color: #fff;
        font-size: 28px;
        /* border: 2px solid #00BFFF; */
}

.button div {
        padding: 25px;

}
ul{
        width: 300px;
        height: auto;
        background-color: #bdbdbd;
        list-style: none;
}
li{
        width: 200PX;
        height: 30px;
        line-height: 30px;
        margin: 20px auto;
        background-color: pink;
}